OK - figured it out - I'm using MQTT to grab data from SkyWeather to put into weewx. So, I had started an mqtt server on THAT server, and pointed MQTT_URL (in SkyWeather config) to that. Of course, when I pointed the CAMERA at my skyweather host that (obviously, D'Oh!) didn't work. So - I have a path forward! Still some work to be done on mqtt publish, I think (I sent you some suggestions on that a while back) and my AQI is still having "settling" issues with the default timings.
I'm gonna ignore the rain issues - much of my problems are caused by wind "rattling" the sensor. I solved it by buying an Accurite gauge that I'm gonna mount on a post about 5' up and just use that for my "official rain"
You're gonna see an order from me for 3 more SkyCams and I want to have a discussion about powering more than 1 SkyCam from a single solar cell (MUCH bigger, of course) and battery - my ultimate goal is to do 8 cameras so I send the data to picturepost (https://picturepost.ou.edu/index.jsp). Stay tuned.....
Yes, should easily be able to run 8 ESP32 Cams. We keep getting requests for the ESP32 Cam stack, so we will add that into the product list. They require hand assembly, so they won't be cheap but we will do that.
Yes, SolarMAX2 has a 12 V power supply.
It does sound reasonable. I'll edit this posting when I add the ESP32 Cam Stack.